cheryl: pope benedict xvi surprise resignation setting the stage for a succession battle. amy kellogg is in rome with the latest developments. amy: those who are contenders to be the next pope, a cardinal from ghana says he thinks it would be time for a pope to come from asia or africa. he said the younger churches have become mature enough to offer a pope and it would be a good thing because frankly between a half and two-thirds of the catholic are of the southern churches. in the meantime for the first time we're hearing there could be an american pope although most people think it is not terribly likely. a lot of experts say probably the vatican does not want a pope from the world's remaining superpower. the process of choosing the pope will begin around the middle of march when the conclave will happen. it was received by vatican officials that pope benedict xvi is have a pacemaker for many years and the batteries changed just three months ago, but that is not the reason for his resignation and that this whole situation has not impacted his work especially at the time